Home / 224,035.32-309,165.48-128,539.92

Finding the Fourth Proportional to 224,035.32, 309,165.48 and 128,539.92

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Solution

The fourth proportional to 224,035.32, 309,165.48 and 128,539.92 is: 177,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,035.32 : 309,165.48 = 128,539.92 : x
  2. Step 2: Convert to fraction form
    224,035.32/309,165.48 = 128,539.92/x
  3. Step 3: Cross multiply
    224,035.32x = 309,165.48 × 128,539.92
  4. Step 4: Simplify right side
    224,035.32x = 39,740,106,065.96
  5. Step 5: Solve for x
    x = 39,740,106,065.96/224,035.32
  6. Step 6: Final answer
    x = 177,383.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.